Retraction

Calvo-Guirado JL, Ramírez-Fernández MP, Maté-Sánchez JE, Bruno N, Velasquez P, de Aza PN. Enhanced bone regeneration with a novel synthetic bone substitute in combination with a new natural cross-linked collagen membrane: radiographic and histomorphometric study. Clin Oral Impl Res. 2015;26: 454-464. The above article published online on 10 April 2014 in Wiley Online Library (wileyonlinelibrary.com), and in Volume 26, pp. 454-464 has been retracted by agreement between the journal Editor in Chief, L Heitz-Mayfield and John Wiley & Sons Ltd. The retraction has been agreed due to image discrepancies, resulting in unreliable data. Images in Figures 5, 6b, 7b and 7c have been used in other publications representing different materials, experiments, experimental conditions and time points. Reference Calvo-Guirado JL, Ramírez-Fernández MP, Maté-Sánchez JE, Bruno N, Velasquez P, de Aza PN. Enhanced bone regeneration with a novel synthetic bone substitute in combination with a new natural cross-linked collagen membrane: radiographic and histomorphometric study. Clin Oral Impl Res. 2015;26: 454-464. https://doi.org/10.1111/clr.12399.